package com.sky.service.impl;

import ch.qos.logback.classic.Logger;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.sql.Time;
import java.time.LocalDateTime;
import java.util.List;

@Service
@Slf4j
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */


    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();


        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }


        //密码比对
        // 用md5 加密密码
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        log.info(password);
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    /**
    * 添加员工
    *
    * @Param EmployeeDTO
    * @return
    */
    @Override
    public void save(EmployeeDTO employeeDTO) {

        // 创建员工实体类对象
        Employee employee =new Employee();

        // 对象拷贝
        BeanUtils.copyProperties(employeeDTO,employee);

        // 设置默认密码 123456
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));

        // 设置用户状态
        employee.setStatus(StatusConstant.ENABLE);

        //用户 创建时间 修改时间
        //employee.setCreateTime(LocalDateTime.now());
        //employee.setUpdateTime(LocalDateTime.now());

        //修改 / 创建信息人员id

        //employee.setCreateUser(BaseContext.getCurrentId());
        //employee.setUpdateUser(BaseContext.getCurrentId());

        employeeMapper.insert(employee);

    }


    /**
     * 员工信息分页查询
     *
     * @Param employeePageQueryDTO
     * @return
      */
    public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO) {
        // 开启分页查询  提前规定好结果要那页 这页有多少数据
        PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());

        // 下一条sql进行分页，自动加入limit关键字分页  page拦截器
        Page<Employee> page = employeeMapper.pageQuery(employeePageQueryDTO);

        // 返回 数据个数总和
        long total = page.getTotal();
        // 根据分页查询的规定 返回这一页的集合对象
        List<Employee> result = page.getResult();
        return new PageResult(total,result);
    }

    /**
    * 更改员工状态信息  启用 禁用
    * @Param status id
    *
     */
    @Override
    public void status(Integer status, Long id) {
        Employee employee=Employee.builder()
                .id(id)
                .status(status)
                .build();

        employeeMapper.update(employee);
    }

    /**
     * 根据id查询员工信息
     * @Param id
     * @return
      */
    @Override
    public Employee getById(Long id) {
        Employee employee=employeeMapper.getById(id);
        return employee;
    }

    /**
     *编辑员工信息
     * @Param employeeDTO
     *
      */
    @Override
    public void update(EmployeeDTO employeeDTO) {
        Employee employee=new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);

        employeeMapper.update(employee);
    }

}
